The American Turquoise Mine Guide — Every Major Source, Explained
The mine a turquoise stone came from tells you its color, its rarity, how it will age, and a significant amount about what it is worth. This guide covers every major American turquoise source — plus the most significant international mines — so you can buy with knowledge instead of guessing.
Turquoise is a hydrated copper aluminum phosphate mineral. Its color comes from the ratio of copper to iron in the specific geological deposit where it formed. More copper produces blue. More iron shifts the stone toward green. That ratio is fixed by geology — it is why no two mines look alike, and why learning the mines is one of the most useful things you can do as a collector.
American Turquoise Mines
Sleeping Beauty — Globe, Arizona
Color: Pure, unmatrixted sky blue — almost no variation from stone to stone.
Matrix: Rarely present. When it appears, it is typically a very fine white or light brown.
Status: Closed to gem-grade production in 2012. Fixed supply; value has appreciated steadily since closure.
Why it matters: Sleeping Beauty became the global benchmark for clean turquoise blue. Its consistency made it the most widely used stone in commercial Western jewelry for decades. When most people picture turquoise, they are picturing Sleeping Beauty. The mine's 2012 closure converted all existing stock into a finite supply — making authentic, documented Sleeping Beauty increasingly valuable. Buy it from sources who can confirm provenance.
Bisbee — Cochise County, Arizona
Color: Deep cobalt to royal blue, often with very high saturation.
Matrix: Distinctive chocolate-brown or jet-black matrix. This matrix is one of the most recognizable in American turquoise.
Status: The Lavender Pit copper mine that produced it closed in 1975. Old-mine Bisbee is now genuinely rare.
Why it matters: Bisbee is among the most coveted American turquoises. The stone was gathered by copper miners for years before the gem trade recognized its quality. Its combination of deep cobalt color and chocolate matrix is unlike any other American source. Collectors who know it identify it immediately. Documented old-mine Bisbee commands significant premiums on the secondary market.
Morenci — Greenlee County, Arizona
Color: Vivid blue.
Matrix: Dramatically veined with gold pyrite, creating a shimmering metallic effect unlike anything else in American turquoise.
Status: Limited availability. Not actively mined for gems.
Why it matters: Morenci is one of the most visually striking stones in the American range. The pyrite matrix catches light in a way that reads as almost metallic. It is immediately recognizable to collectors familiar with it.
Kingman — Mohave County, Arizona
Color: Wide range — from soft sky blue to rich blue-green. Considerable variation across production.
Matrix: Often black or white. Spider-web matrix occurs and is particularly collected.
Status: One of the few major American mines still actively producing. One of the most historically significant.
Why it matters: Kingman is among the most productive and historically important turquoise mines in North America. Kingman stone moved through prehistoric trade networks centuries before European contact. Its long production history means there is genuine variation in quality and color — buy from sources who can tell you when and where specific pieces were mined. Kingman spider-web matrix is among the most collected of all American patterns.
Royston — Nye County, Nevada
Color: Warm blue-green to deep green. Earthy, complex, unlike sky-blue varieties.
Matrix: Substantial and characteristic — brown, tan, and dark veining. The matrix is part of the stone's identity.
Status: Still actively mined.
Why it matters: Royston is the most earthy of the major American turquoises — it speaks of desert and sage rather than sky. For collectors who find the clean blue of Sleeping Beauty too expected, Royston offers something richer and more complex. Its warm tones work particularly well against oxidized silver and with warm-complexion wearers. Still producing, which makes it more accessible than closed-mine stones.
Carico Lake — Lander County, Nevada
Color: Chartreuse to apple green — highly distinctive. Unlike anything else in American turquoise.
Matrix: Variable. The stone's color is the primary identifier.
Status: Rare. Limited production.
Why it matters: Carico Lake's unusual green comes from an exceptionally high zinc content in the deposit — a geological rarity. The color is polarizing: some collectors find it immediately compelling, others need time. Those who love it tend to pursue it with focus. It is among the rarest and most distinctively colored of all American turquoises, and is undervalued relative to its rarity by buyers who have not yet been introduced to it.
Number Eight — Elko County, Nevada
Color: Vivid blue-green.
Matrix: Golden-brown spider-web over the stone's surface — among the most dramatic spider-web matrix in American turquoise.
Status: Original deposit exhausted. Exists only in existing collections and on the secondary market.
Why it matters: Number Eight spider-web matrix is one of the most recognizable and collected patterns in American turquoise. The original deposit produced for a limited period and is now fully exhausted — no new material exists. Authentic Number Eight is found only through established collectors, reputable dealers, and estate sales. Misattribution is common; buy only from sources who can document provenance.
Dry Creek — Lander County, Nevada
Color: Pale ivory to very light blue — sometimes called "white buffalo" by those unfamiliar with the distinction, though they are separate materials.
Matrix: Light or absent. The stone's pale color is highly distinctive.
Status: Very limited production. One of the rarest Nevada turquoises.
Why it matters: Dry Creek is among the rarest American turquoises. Its very pale, almost ghostly color is unlike anything else in the Western vocabulary. Collectors who encounter it tend to remember it. Genuine Dry Creek is scarce — if a seller has it, ask for documentation.
Lone Mountain — Esmeralda County, Nevada
Color: Rich blue to blue-green.
Matrix: Fine spider-web — among Nevada's most elegant.
Status: Limited production. Collector stone.
Why it matters: Lone Mountain is known for producing some of the finest spider-web matrix in Nevada. The combination of rich color and intricate webbing makes it highly sought. Limited production keeps it in the collector tier.
Fox — Lander County, Nevada
Color: Blue to blue-green with variable matrix.
Status: Produces some of Nevada's most consistent mid-range quality.
Why it matters: Fox is a reliable Nevada source producing solid blue to blue-green stones. Less celebrated than Number Eight or Lone Mountain but valued for quality and consistency.
Cerrillos — Santa Fe County, New Mexico
Color: Pale blue-green to greenish. Often heavily matrixted.
Status: The oldest continuously mined turquoise source in North America. Modern production limited.
Why it matters: Cerrillos turquoise was mined by Ancestral Puebloan peoples for more than two thousand years. Turquoise beads from this source have been found at Chaco Canyon dating to 900 CE. At one excavated great house at Chaco, archaeologists recovered over fifty-six thousand turquoise artifacts. The historical significance of Cerrillos stone is without parallel in American turquoise. Modern Cerrillos stone is prized as much for what it represents as for its aesthetic qualities.
Golden Hills — Kazakhstan
Color: Distinctive periwinkle — blue with a soft violet quality unlike American or Persian stone.
Matrix: Typically minimal.
Status: Actively mined. Increasingly available in the American market.
Why it matters: Golden Hills produces a periwinkle tone that has no true equivalent in American turquoise. Its unusual color has attracted strong collector interest. As one of the more recently recognized collector stones in the Western jewelry market, it offers value relative to its visual distinction.
International Turquoise
Persian / Nishapur — Iran
Color: Pure robin's-egg blue — the classical standard. Clean, saturated, often without matrix.
Status: Mines remain active. Persian turquoise has been in continuous production for over two thousand years.
Why it matters: Persian turquoise from the Nishapur region of Iran is the historical benchmark against which all other turquoise has been measured for millennia. Its blue is pure and saturated in a way that remains distinctive. Understanding Persian turquoise gives collectors a reference point for evaluating everything else.
Sinai — Egypt
Color: Characteristic greenish-blue.
Status: Mostly exhausted. Historical source.
Why it matters: Among the oldest turquoise sources in the world, worked by ancient Egyptians for over six thousand years. Sinai turquoise appears in pharaonic jewelry. The mines are largely exhausted today; the stone's significance is primarily historical.
Tibet and China
Color: Wide variation — vivid sky-blue to deep mottled green, often with substantial matrix.
Status: Significant commercial production for both domestic and export markets. Quality varies enormously.
Why it matters: Tibetan and Chinese turquoise covers enormous quality variation. Some Chinese material is excellent; much of what reaches the commercial market is low-grade or treated. Buyer knowledge is essential when evaluating Chinese turquoise.
Understanding Turquoise Treatment — Natural, Stabilized, and Treated
The treatment category of a turquoise stone significantly affects its value, its behavior over time, and what the seller is legally required to disclose.
Natural turquoise has not been treated or enhanced after mining and cutting. It is the rarest form commercially. Natural stone is porous — it absorbs oils and trace elements from the wearer's skin over time and changes color. This process is called taking a patina and is considered a mark of quality by serious collectors. Only natural turquoise does this.
Stabilized turquoise is real turquoise — mined from the earth, cut from genuine stone — that has been impregnated with resin under pressure to harden it for jewelry use. Much of the turquoise mined is too soft or porous to hold a setting without stabilization. Stabilized turquoise is legal, common, and often beautiful. It will not develop patina. Honest sellers disclose it.
Treated turquoise may have had its color chemically altered or enhanced. Disclosure is required. "Color-enhanced" turquoise has been dyed or otherwise modified beyond stabilization.
Synthetic or simulated turquoise is not turquoise. Dyed howlite, plastic, epoxy composites, and other materials are produced to imitate turquoise's appearance. They have no mineral connection to genuine stone. This category is where fraud occurs.
Under the Indian Arts and Crafts Act of 1990, any seller using the terms "Indian-made," "Native American," or "handmade by Indians" for work not made by members of federally or officially state-recognized tribes is committing a federal crime, with fines up to $250,000 for individuals. Knowing this law makes you a significantly harder person to defraud.
How to Read a Turquoise Stone
When you are evaluating a turquoise piece, ask these questions:
- Where did this stone come from? A reputable seller should be able to tell you the mine of origin, or at minimum the region. "Arizona turquoise" or "Nevada turquoise" is better than no information. A named mine is better still.
- Is this stone natural, stabilized, or treated? This should be disclosed without your having to extract it. If the seller is vague or evasive, that is useful information.
- What does the matrix tell you? The matrix — the host rock or mineral inclusions within the stone — can help identify origin. Chocolate-brown matrix suggests Bisbee. Gold pyrite matrix suggests Morenci. Spider-web matrix occurs across several mines but varies in character. No single matrix feature is conclusive, but patterns help.
- How does the color behave? In natural light, genuine turquoise has a depth and specificity that dyed imitations typically lack. A stone that looks vivid under fluorescent lighting but flat and uninteresting in natural light deserves scrutiny.
Mine Reference Table
| Mine | Location | Color Range | Status | Notable For |
|---|---|---|---|---|
| Sleeping Beauty | Globe, AZ | Pure sky blue | Closed 2012 | Clean blue, no matrix, appreciating value |
| Bisbee | Cochise County, AZ | Deep cobalt to royal blue | Closed 1975 | Chocolate matrix, rare, highly collected |
| Morenci | Greenlee County, AZ | Vivid blue | Limited | Gold pyrite matrix, shimmering effect |
| Kingman | Mohave County, AZ | Sky blue to blue-green | Active | Historically significant, spider-web available |
| Royston | Nye County, NV | Warm blue-green to deep green | Active | Earthy, substantial matrix, warm tones |
| Carico Lake | Lander County, NV | Chartreuse to apple green | Rare | Unusual zinc-driven color, polarizing |
| Number Eight | Elko County, NV | Vivid blue-green | Exhausted | Golden spider-web matrix, secondary market only |
| Dry Creek | Lander County, NV | Pale ivory to light blue | Very limited | Rarest Nevada turquoise, pale distinctive color |
| Lone Mountain | Esmeralda County, NV | Rich blue to blue-green | Limited | Fine spider-web, collector stone |
| Fox | Lander County, NV | Blue to blue-green | Active | Consistent quality, mid-range |
| Cerrillos | Santa Fe County, NM | Pale blue-green | Limited | Oldest continuously mined source in North America |
| Golden Hills | Kazakhstan | Periwinkle | Active | Distinctive violet-blue, increasingly collected |
| Persian / Nishapur | Iran | Pure robin's-egg blue | Active | Classical standard, two thousand years of production |
Every piece of turquoise at Turquoise Mustang is selected with mine identity in mind. When we know the source, we say so. When we don't know with certainty, we say that too. The mine is part of what you are buying — and you deserve to know what it is.